Physaria acutifolia
Physaria lepidota
double bladderpod, pointleaf twinpod, Rydberg's twinpod, sharpleaf twinpod
Kane County twinpod
several from base, usually somewhat decumbent, (unbranched), (0.4–)0.5–2 dm.
simple from base, erect or outer ones slightly decumbent toward base, (from below or in basal leaves, unbranched), (0.5–)0.8–1.6(–2) dm.
(petiole slender, often narrowly winged);
blade obovate to orbicular or rhombic-orbicular, 2–9 cm, (base abruptly narrowed to petiole), margins usually entire, rarely with few scattered teeth, (apex rounded or obtuse, sometimes with apical mucro).
(erect, petiole long, slender);
blade spatulate to broadly oblanceolate, (3–)5–7(–12) cm, (base gradually tapering to petiole), margins entire, (apex rounded or obtuse).
blade spatulate to oblanceolate, 1–3 cm, margins entire, (apex usually obtuse).
blade oblanceolate, similar to basal, (base cuneate), margins entire.
loose, (elongated in fruit).
dense.
sepals linear-oblong, 4–7.5 mm;
petals spatulate, 6–11 mm.
sepals (erect), linear to linear-oblong, somewhat boat-shaped, 7–10 mm;
petals (erect at anthesis), lingulate, 11–15 mm, (claw undifferentiated from blade).
(divaricate, slightly sigmoid or nearly straight), 6–12 mm.
(divaricate-ascending, straight or slightly curved), 10–15 mm.
(erect), didymous, suborbicular, inflated, (4–)6–15 × (4–)8–20 mm, (papery, basal and apical sinuses similar, basal rarely shallower, apical deep, narrow and closed or nearly so);
valves retaining seeds after dehiscence, pubescent, trichomes appressed;
replum oblong, constricted, 2–3.5 mm, narrower than fruit, apex obtuse;
ovules (2 or) 4 per ovary;
style 4–6(–9) mm.
(purplish in age), strongly didymous, semiorbicular, highly inflated, 10–18 × 14–19 mm, (papery), basal sinus usually shallow, rarely absent, apical sinus deep, narrowly V-shaped;
valves retaining seeds after dehiscence, sides flat, back rounded, margins keeled, base and apex obtuse;
replum narrowly oblong to linear, as wide as or wider than fruit, base slightly narrowed, apex obtusely rounded;
ovules 4 per ovary;
style 3–5 mm, (slender).
(dark brown), flattened, (2–3 mm).
slightly flattened.
= 10, 16, 24.
Physaria acutifolia
Physaria lepidota
Physaria acutifolia tends to be somewhat dwarfed, with a branched caudex and especially long styles (var. stylosa), where it grows at high elevations, especially at the western end of the Uinta Mountains in Utah. Intermediates form an uninterrupted cline and no infraspecific taxa are here recognized. In R. C. Rollins (1939), the discussion of P. acutifolia actually pertains to P. rollinsii. The discussion of P. australis pertains to what is now known as P. acutifolia. The plants are usually found in open soil patches, rarely into the subalpine or alpine tundra.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Trichomes: rays fused nearly to tips; fruits with deep sinuses, or shallow basally, deep apically. | subsp. lepidota |
1. Trichomes: rays fused in proximal 1/2; fruits with sinuses absent or shallow basally, deep apically. | subsp. membranacea |
CalFlora
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
